Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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Furnace lights briefly but wont stay lit - Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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Robert Horton

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Hi sounds as though you have a dirty flame sensor that you need to clean. On a propane unit, they tend to carbon up much faster then a natural gas unit. The flame sensor is located next to the pilot, and has a metal tip that rests in the pilot flame. Most are made of porcelin and will have a electrical wire coming out of the back that is connected to the module or circuit board, which ever you have. When they get dirty, they cant get hot enough to produce enough milivolts to tell the ignitor module that the pilot flame is established, and will shut the unit off. This will happen about 3 times until it is locked out. Just use a piece of fine steel wool or sanding cloth to clean the tip, and this should take care of your problem. If the problem continues, please let me know, and we can check further into it. You may have a ignitor module that you are loosing, or ignitor board. Please keep me posted on this, as I am sure cleaning the tip will solve this problem. Please rate me! 4 thumbs up would be great!
Sincerely,
Shastalaker7
A/C, & Heating Contractor

Posted on Nov 19, 2010

  • Robert Horton
    Robert Horton Nov 20, 2010

    Hi, checking in with you to see what is up!
    Shastalaker7

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